Wire-strap seal and method of forming the same



No 20 1923. wmz

w. w. LURCOTT WIRE STRAP SEAL AND METHOD OF FORMING THE SAME Filed Jan.10, 1920 I N V EN TOR. mxvrfifo M Zwrcarr K ATTORNL.

Patented Nov. 20,1930

UNITED STATES Wm H. LUBCOTT, OI WEEHAWKEN, N'lY-VJERSEY.

man-arm sitar. a m xmnon oF-roamme THE sans.

Application filed January 10, 1926. Serial No. 350,544.

son and State of New Jersey, have invented certain new and useful Imrovements in Wire-Strap Seals and Meth s of Forming the Same, of whichthe following is a full, clear, and exact description.

Among the principal objects which the present invention has in view are:To form a substantial fastening for wire straps used for binding boxes,'bales, and similar articles; to secure the ends of the stra and to sealthe same quickly; to draw tlie strap tightly on the object bein packed;and to provide a seal which mayie fastened while the wire strap is undermaximum tension.

Dru/wings.

I Figure 1 is a view showing end fra ments of a strap united b means ofa seal constructed and arranged in accordance with the resent invention;

Figure 2 is a view of an and fragment having an open spiral coil whichwhen enclosed forms the seal; and

Figure 3 is a view showing the open coil with the straight end of't hestrap Inserted therein prior to closing the coil.

Description.

Wire straps are used for securing packing cases, bales and otherarticles, and to that end are passed around the case or article, and theends are drawn together and secured. The object in view is to draw thewire as securely as possible around the case, and to fasten the endspermanently and ,strongly without slacking or relieving the tension onthe wire.

, With this object in view the present inven;'

arallel to and set at one side.

drawings where the free end 13 is in line with, a shown as in the" actof being in troduced through, the loops 10 and 12.

In Figure 3 the disposition of the free' end within the loops of thespiral is shown. In thls position the end of the wire strap having thespiral is drawn in one direction, whilethe free end 13 is drawn in theoppo slte direction, to bind the wire strap on the article being packed.When the strap has been drawn tightly, the coils of the spiral arepressed or flattened until the sections of the spiral beneath are forcedupward, while the other sections above the portion 11 and end 13 arepressed downward with the effect that the said portion 11 and end 13 arecrimped or waved by being displaced by the pressure up bed to theportions of the spiral.

s shown in the drawings, the spiral is so open that the under and upperportions are removed from each other, so that the wire forming theportion 11 and the end 13 ma move in accord with the pressure applieWhen the portion 11 and the end 13 have been crimped, as shown in Figure1 of the drawings, theend 13 cannot be drawn from the seal withoutstraightening the coils and the wire itself, to do which the strain onthe strap is insuflicient.

The spiral may 'be flattened by any suitable means. The sections may behammered on an. anvil slipped below the seal, or an apparatus may beusedto' formthe seal such as is disclosed in a co-pend'ing applicationfiled the 10th! day of January, 1920, Serial No. 350,545, to whichapplication cross reference is here made.

When the seal is perfected the coils and engaged wire are flattened toapproximate the thickness of two layers of the wire. The seal beingflat, rests snugly on the packing case to avoid catching or snaggingother articles. The excess wire of the free end 13 is clipped close tothe inner end of the seal.

While I prefer to form the spiral of the wire'strap 9, and inte a1therewith, I may use a short section 0 spiral formed separately.. Otherforms of separate seals may be used having upper and lower bars held inspaced relation and staggered substantially as shown in the drawings.Through these various forms, both ends of the wire strap 9 may beextended before the spiral is closed thereon to crimp the said ends, andthereby hind or seal the strap.

Claims.

1. A wire strap and seal therefor com rising a continuous double endedwire having at one end,a portion thereof returned upon itself in openspiral ooils enveloping said wire to form a passage for the opposite endof said wire, the ends of said wire being crimped upon the sections ofsaid coil.

2. A wire strap and sealtherefor comprising a continuous double endedwire having at one end a portion thereof returned upon itself in openspiral coils enveloping said wire to form a passage for the opposite endof said wire, the ends of said wire bein cnimped upon the sections ofsaid coil, said c-rimped portions and coil forming a. relatively fiatstructure.

- 3. A wire strap having at one end thereof an open helix integral withand enfoldingr the adjacent straight portion of said wire,

said helix beingofl'set in relation to the en-v foldexl strai ht portionof said wire for holding said straight portion against the sides of saidhelix to provide a. passage for the opposite end of said wire betweenthe said straight portion of said wire and the opposite side of saidhelix.

WINFRED N. LURCOTT.

